Frank l



No Model.)

T. L. UNION.

OBSSPOOL.

Patented Apr. '1, 1890 FIG.E.

M. L 2 J WITNESSES n'rssir Or fice;

cesspool.

sen ill" enrich. rem e or LettersPntent m. eeesse, dated A ril 1, menApplioeiion flied September 3, 18 891, Bedel llo. 32 23% (No model.)

To all whom p'fi may concern:

Be .it known that l, FRANK L. Umoin'of Boston, in the conntyofsnfiolkand State of Massachusetts, have invented certain new'and usefulimprovements in 'Gesspools, of which the following is e specificeeion-Lit is the object of my invention to-provide such improvements incesspools as will re suit in the complete separation of the solid endsemi solid portions of the sewage from the water or purely fluidportions, so that the latter may be taken up or absorbed by the earthand the former may-be kept from opersting to prevent such absorption bythe earth of the letter,

A dimcnlty arising in the use of cesspools es heretofore constructed hasbeen that the vseini-snlids of the sewage-matter, particularly greiiseand greasy matter, have been allowed to so flow into the reservoir orpool from which it vwere designed the water should be absorbed by-theearth The efiect of this has been to in eshort time so cost the wells ofsaid reservoir or. pool and close the pores or passages in the earth asto prevent absorption of the water. 'By my invention this diiiicult'y isentirely overcome, the construction of my improved cesspool being suchas to effectively separate the solids and semi-solids of the sew- 7 agematter from the water or purely liquid In cerryingont my invention llconstruct a,

receiving and separating pool a; of suitable;

form and dimensions and s coininnnicoting discherge pool h, usually,though noi always, larger then the pool a, In the' pool a, across 0 thesome and extending up to epoint sneer inidwey between the top and someof the l in mosiz'insmnces constrnctswsten the partition 0. Thisarrangement of the suplin-e (horizontally considered) upon which the Ofthe drawings, Figure 1 is a vertical sec tightpsrt-ition or wall 0,dividing the said pool a into'two compartments d e. The sew age endwater flows intopool a through the pipe f, which pipe enters the saidpool a at a, high point and turns downward to a point which brings itsmonth below on imaginary horizontal line passing just over the top of 6oply-pipe f is preferred by me, though it is not essential, since it canbe'variously arranged without departing from the nature-or spirit of theinvention.

g designates the pipe afiording means of communication between the poolsa and b.

' The said pipe 9 extends from a point in the compartment e considerablybclowthetop of the partition 0 up toa. point just below the pipe fenters the pool a, at which point the said pipe 9 turns and possesvthrough to and into the pool 11, the sides or walls of which areconstructed of loose stone, as shown, or otherwise formed so as topermit the Water in 7 5 the said pool to soak-0r filter therefrom intothe ground.

' Pool a, is provided with s men-hole Mend pool 12 may be constructed-inlike manner.

In the use of my improved cesspool the watercarried sewage will flowinto the pool 0; through 'the'pipe f, the solids andell metterof greaterspecific gravity than the water settling to the bottom of thecompertmentd, while the clear water will rise and flow over the pertition cinto'the compartment e, fromwhence it will be taken by the pipe g andconveyed tothe pool 11. The oil and grease in the sewage, which operates to cost or line the wnlls'of cesspools, so as to, prevent the waterin. the said pools from being absorbed byor soaking. into the earth,rises to the surface in the pool 0;, and is kept entirely from flowinginto pool 12 by resson of the feet that the waiter flowing into the poolb entersthecommnniceting pipe 9" eta point 5 greatly below the surfaceof the water in the compartment e end-below the top of the pan tition clIn this way nothing but compares .tively clear weterwill: be deliveredin pool b,

which clear water will resdily'sosk into or be absorbed from said poolby the eerth. Pool a, being designed as a, means for separatingtheseiids and semi-solids fromihe water, is made water-tight; The said.solid matter, or

so r 424,838

matter of heavier specific gravity, will be collected in the compartmentd, from which compartment it may be removed from time to time, es thenecessities of the case may demand." The greasy-matter andmatter-offices specific gravity than the water can also be readilyskimmed off from the top of the water in the pool a and removed throughthe manhole opening thereinto.

Heving time described my inventio n, I deciere that what I claim is- Theimprovement in cesspoois consisting of e "water-tight reservoir provided"with a, water-tight partition 0-, a, receiving-pipe extending into saidrwervoir and extending downward therein to a point below the surface ofthe water, a reservoir heving'eides through which the water maypercoiete, and

a pipe extending from a point below the surfec'e'of the water in thewater-tight reservoir up tov a, pointbeiow that at which the receiv-August, A. D. 1889. FRANK L. UNION.

Witnesses:

ARTHUR W. CRossLEY, C. F. BROWN.

